Question

Solve by completing the square: x2-8x-6=0

Answer 1

x = -√22 + 4

x = √22 + 4

Explanation:

x² - 8x - 6 = 0

x² - 8x = 6

x² - 8x + ? = 6 + ?

x² - 8x + 16 = 6 + 16

x² - 8x + 16 = 22

(x-4)² = 22

x = -√22 + 4

x = √22 + 4